Waste to Soil Adapter Cap Pipe Reducer 110mm 4″ to 40mm 1 1/2″

Waste to Soil Adapter Cap Pipe Reducer 110mm 4″ to 40mm 1 1/2″

Features

The terracotta 110mm soil pipe adapter cap reducer provides a reliable connection solution designed specifically to connect standard 40mm waste pipes (from baths, showers, kitchen sinks, washing machines, or dishwashers) into a main 110mm / 4″ terracotta soil and vent system. Manufactured with a robust uPVC plastic core finished in terracotta and a flexible black rubber ribbed end, this fitting ensures a secure, watertight seal without the need for complex solvent welding. Furthermore, it features a spigot design that pushes directly into standard 110mm soil pipes. Because you receive a specialized adapter, you can easily tie high-capacity appliance and bathroom waste lines into larger terracotta drainage stacks. As a result, you achieve a professional, highly reliable, and leak-free plumbing installation that stands the test of time.

• Standard 110mm to 40mm Sizing: Precision-engineered with a 110mm (4″) ribbed rubber end to fit standard soil pipes and a boss reducer designed to securely grip 40mm high-capacity waste pipes. Therefore, it guarantees a snug, accurate cross-system connection.
• Push-Fit Ribbed Rubber Seal Design: Features an integrated flexible black rubber ribbed end. Consequently, it creates a tight, compression-fit grip inside the soil pipe and eliminates the need for messy glues or sealants.
• Secure Spigot Connection: Designed with a solid uPVC plastic core and rib end that slots securely into standard 110mm soil pipe runs. Moreover, it allows for quick and straightforward positioning within existing drainage networks.
• Durable Terracotta Weather-Resistant Construction: Manufactured from high-strength rigid uPVC and resilient rubber finished in traditional terracotta. As a result, it resists chemical corrosion, UV degradation, temperature fluctuations, and daily wear from heavy wastewater.
• Ideal for Multi-Appliance Connections: Specifically tailored for routing secondary wastewater from baths, showers, sinks, or utility appliances into the main soil stack. Furthermore, it ensures a tidy and efficient transition.

Technical

• Brand(s): Polypipe / Floplast
• MPN(s): UG435 / SP11
• Product Type: Soil Pipe Adapter Cap Reducer / Boss Connector
• Connection Type: Push-Fit (Ribbed Rubber Spigot to Boss Reducer)
• Size Compatibility: Fits standard 110mm / 4″ soil pipes and accepts 40mm waste pipe
• Colour: Terracotta body with black rubber ribbed end / reducer
• Material Construction: Solid uPVC Plastic Core with Flexible Rubber Rib End

Details

Connecting high-capacity waste pipes—such as those from kitchen sinks, baths, showers, or washing machines—into a main 110mm terracotta soil and vent stack requires a secure adapter that prevents foul air leakage while accommodating larger pipe diameters. Moreover, mismatched grey or black fittings can ruin the look of traditional terracotta pipe installations.

Fortunately, this terracotta 110mm soil pipe adapter reducer solves the problem with professional efficiency. Because it features a ribbed rubber spigot for standard soil pipes, a black rubber boss for 40mm waste pipes, and a traditional terracotta finish, it creates an immediate, watertight barrier while keeping a smart appearance. Consequently, you achieve a clean, secure, and permanent system transition.